Hydraulic impactor

Details Hydraulic impactor Hydraulic impactor

1980-04-17

1982-12-14

Maslousky, Paul E.

Motors: expansible chamber type

Application of motive fluid at different pressures to...

91276, 91290, 92134, F01L 1700, F01L 2504

Patent

active

043632580

ABSTRACT:
An all-hydraulic impactor for percussion tools and the like embodying an oil accumulator and an annular sleeve valve. Hydraulic fluid is initially supplied to the accumulator at full supply pressure and is then charged, for example, to three times the supply pressure by a differential piston arrangement. The impactor of the invention minimizes the required volume of the accumulator.

REFERENCES:
patent: 1593606 (1926-07-01), Slater
patent: 3925985 (1975-12-01), Peterson
patent: 3965799 (1976-06-01), Juvonen et al.
patent: 4011795 (1977-03-01), Borthe et al.
patent: 4022108 (1977-05-01), Juvonen
patent: 4103591 (1978-08-01), Reiersdol

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